Is there an overlap in The 28 'Magic' scenes and the 64 scenes as seen in the Plot Sequence Materials Report? I mean: the 28 magic scenes are 4 signposts and 3 journeys for 4 throughlines (4 x (3 + 4) = 28). And the 64 Plot Sequence scenes are obviously related to the signposts, and each signpost has 4 variations (4 x 4 x 4 = 64). But are they related to the journeys as well? Suppose I use all 64 scenes from the Plot Sequence Report, do I still need to add the journeys? Or can I consider one of the variants the 'real' signpost and the other 3 are part of some journey?

I'm really struggling with the logic behind Dramatica's signpost-journey conception of plot: specifically when it comes to the sequences.
If every act is explored in terms of four sequences, then, obviously, four sequences go inside each act. But the journeys seem to take the bulk of the plot, the acts being just places to visit relatively quickly -- the last act being the destination. So, this raises the obvious contradiction that the sequences don't have anywhere to fit in unless the journey…